Already done successfully on other NE-5501-SE. It was strange. Supplier will do RMA.

Sorry, was a typo error. Using 115200 it’s giving blank output or some “?” sometimes. How you fixed bootloader / CPUIOFPGA?

Hello Fabrice,We are experiencing same problem on NCS-5501-SE. Downgrade from 6.x to 7.2.2 was ok, then we decided to upgrade 7.2.2 to 7.4.2 having same behaviour, boot loop. We tried to connect console cable (we was using to upgrade), but we don't g...